li{
    list-style: none;/*去掉小圆点*/
    cursor: pointer;
}
li:hover{
    color: #ee7726;
}
.logo:hover{
    color: #ffffff;
}
#wrap{
    background: url("../image/pic7.jpg")no-repeat;
    background-position: center center;
    background-attachment: fixed;
    background-size: cover;
}
.header{
    line-height: 50px;
}
.header nav{
    height: 50px;
    background: #ccc;
}
nav ul li{
    float: right;
    margin-right: 30px;
}
.logo{
    float: left;
    margin-left: 40px;
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;/*加粗字体*/
    letter-spacing: 2px;
}
.banner{
    height: 600px;
}
.banner .inner{
    color: #ffffff;
    text-align: center;
    margin: 0 auto;
    max-width: 300px;
    position: relative;
    top: 80px;
}
.banner .inner .line{
    width: 65%;
    height: 2px;
    background: #ffffff;
    margin: 0 auto;
    margin-bottom: 10px;
}
.banner .inner h1{
    margin-bottom: 20px;
}
.banner .inner p{
    line-height: 30px;
    font-size: 18px;
    letter-spacing: 1px;
}
.banner .inner button{
    margin-top: 20px;
    padding: 10px 20px;
    border-radius: 5px;/*圆角*/
    background: #ee7726;
    border:none;/*去掉边框，不然会留有一圈边框的灰色*/
    color: #ffffff;/*字体颜色*/
    outline:none;/*去掉点击的边框显示*/
    cursor: pointer;/*将鼠标箭头变为“小手”*/
}
.banner .inner button:hover{
    transform:rotate(1080deg)/*旋转角度*/scale(2)/*放大两倍*/;
    transition: 2s;/*动画过渡时间*/
}
.banner .inner .more{
    margin-top: 140px;
}
.content .part1{
    background: rgba(67,178,165,1);
    padding-top: 65px;
    text-align: center;
    color: #ffffff;
    opacity: 0.95;/*透明*/
}
.wraper{
    margin: 0 auto;
    max-width: 1080px;
}
.wraper h1{
    padding: 15px;
    font-size: 27px;
}
.content .wraper .line{
    margin: 15px auto;
    width: 40%;
    height: 2px;
    background: darkgray;
}
.wraper p{
    padding: 15px 0;
    font-size: 18px;
    letter-spacing: 1px;
}
.icon{
    margin: 30px auto;
    margin-bottom: 0px;
    padding-bottom: 30px;
}
.icon .item{
    margin: 50px;
    border:2px solid green;/*solid实线*/
    display:inline-block;/*改变span属性*/
    height: 80px;
    width: 80px;
    transform: rotate(45deg);
}
.icon .item img{/*令图片适应边框大小*/
    width: 100%;
    height: 100%;
    transform: rotate(-45deg);
}
.part2{
    background: rgba(15, 15, 15, 0.80);
}
.first_photo{
    width: 45%;
}
.first_photo img{
    width: 100%;
}
.first>div{
    float: left;/*浮动会脱离文档流,first高度会为零*/
}
/*清除first浮动*/
.clear_fix:after{
    content: '';
    display: block;
    clear: both;
}
.first_text{
    position: relative;
    top: 68px;
    left: 50px;
    width: 55%;
    color: #ffffff;
}
.first_text h2{
    margin-bottom: 15px;
    font-size: 24px;
}
.fist_text .first_title{
    margin-bottom: 15px;
    font-size: 20px;
}
.first_text p{
    font-size: 18PX;
}
.second div{
    float: left;
}
clear_fix:after{
    content: '';
    display: block;
    clear: both;
}
.second_text{
    position: relative;
    width: 55%;
    top: 68px;
    left: 50px;
    color: #ffffff;
}
.second_text h3{
    margin-bottom: 15px;
    font-size: 24px;
}
.second_text p{
    font-size: 18px;
    width: 90%;
}
.second_photo{
    width: 45%;
}
.second_photo img{
    width: 100%;
}
.third_photo{
    width: 45%;
}
.third_photo img{
    width: 100%;
}
.third>div{
    float: left;
}
clear_fix:after{
    content: '';
    display: block;
    clear: both;
}
.third_text{
    position: relative;
    top: 68px;
    left: 50px;
    width: 55%;
    color: #ffffff;
}
.third_text p{
    font-size: 18px;
    width: 90%;
}
.part3{
    background: #3f3965;
    opacity: 0.9;
    color: #ffffff;
}
.three_text{
    padding-top: 65px;
}
.three_text h4{
    text-align: center;
    font-size: 24px;
    margin-bottom: 20px;
}
.three_text .line{
    width: 55%;
    height: 2px;
    background: #1a0973;
    margin: 0 auto;
    margin-bottom: 20px;
}
.card{
    min-height: 300px;
    max-width: 461px;
    -webkit-box-sizing: border-box;/*解决兼容性问题和盒子独立性的问题*/
    -moz-box-sizing: border-box;/*解决兼容性问题和盒子独立性的问题*/
    width: 50%;
    padding: 50px;
    float:left;
    margin-top: 20px;
}
.card h5{
    font-size: 20px;
    text-align: center;
}
.card p{
    font-size: 13px;
}
.three_wrap{
    margin: 0 auto;
    width: 65%;
}
.card:nth-child(1){
    background: rgba(0,0,0,0.05);
}
.card:nth-child(2){
    background: rgba(0,0,0,0.1);
}
.card:nth-child(3){
    background: rgba(0,0,0,0.15);
}
.card:nth-child(4){
    background: rgba(0,0,0,0.2);
}
.footer{
    background: #333;
    min-height: 200px;
    text-align: center;
    color: #ffffff;
}
.share_group{
    display: block;
    margin: 0 auto;
}
.share_group li{
    display: inline-block;/*行级排列*/
    padding: 10px;
    margin-top: 20px;
    margin-bottom: 50px;
}
.active{
    position: relative;
}
.active span{
    position: absolute;
    height: 4px;
    background: #ffffff;
    bottom: 5px;
    left: 0;
    width: 100%;
}
